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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Oct 2024 09:39:43.0695 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 9f4f5011-50b3-4b08-f13b-08dcf73473c4 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF0000231C.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL3PR12MB6572 Core layer is modified to call domain_alloc_user() to allocate PASID capable domain. Enhance arm_smmu_domain_alloc_user() to allocate PASID capable domain based on the 'flags' parameter. Signed-off-by: Vasant Hegde Reviewed-by: Jason Gunthorpe Reviewed-by: Kevin Tian --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 737c5b882355..8a193141f003 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -3084,7 +3084,8 @@ arm_smmu_domain_alloc_user(struct device *dev, u32 flags, const struct iommu_user_data *user_data) { struct arm_smmu_master *master = dev_iommu_priv_get(dev); - const u32 PAGING_FLAGS = IOMMU_HWPT_ALLOC_DIRTY_TRACKING; + const u32 PAGING_FLAGS = IOMMU_HWPT_ALLOC_DIRTY_TRACKING | + IOMMU_HWPT_ALLOC_PASID; struct arm_smmu_domain *smmu_domain; int ret; @@ -3093,6 +3094,9 @@ arm_smmu_domain_alloc_user(struct device *dev, u32 flags, if (parent || user_data) return ERR_PTR(-EOPNOTSUPP); + if (flags & IOMMU_HWPT_ALLOC_PASID) + return arm_smmu_domain_alloc_paging(dev); + smmu_domain = arm_smmu_domain_alloc(); if (IS_ERR(smmu_domain)) return ERR_CAST(smmu_domain); -- 2.31.1